Power on the go? Why didn't you ask? We've got plenty! These portable, rechargeable lithium-polymer battery packs are simple, compact and make for a great way to power your widgets in the field. Best of all, they're dead simple to operate: Just connect your device to one of the two USB ports on the battery pack and press the power button. The LEDs will alert you to the charge level of the battery and start powering your device. The battery pack will turn off on its own when your device stops drawing power from it. To recharge the battery pack, just plug it into your computer or phone charger using a USB micro-b cable.

This particular battery pack has a whopping 6600mAh capacity and will source 5V/1A at one port and 5V/2A at the other.